The theorem states that a squared + b squared = c squared. The side labeled C is the side across from the right angle, meaning the side that we call C does not touch the two lines that make the right angle. Generally the longer of the two other sides is labeled B but since it doesn't matter which is labeled A and B you can label them however you want. And it doesn't matter because you are squaring both of the numbers and then adding them together to find the length of side C.
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a squared + b squared=c squared
With A=5 B=2 C=7, you don't have a right-angled triangle (90° angle), that's why you get a wrong answer. The Pythagorean theorem isn't wrong, YOU are wrong!
2.5 + 3.4 Pythagorean Theorem?
The pythagorean theorem is a^2+b^2=c^2 here is a diagram |\ | \ | \ a | \ c | \ | \ |_____\ b say "a" is 4 "b"is 3 and "c" is 5 4 squared is 16 3 squared is 9 and 5 squared is 25 so 16+9=25 makes sense?
A theorem in math is defined as a result that has been proved to be true using facts that were known. An example of this is the Pythagorean Theorem for right triangles a^2 + b^2 = c^2.